A string of length 221 metre is cut into two parts such that one part is $$\frac{9}{4}$$ th ...
View QuestionThe four digit smallest positive number which when divided by 4, 5, 6 or 7, it leaves always the remainder as 3:
a) 1000 b) 1257 c) 1263 d) 1683 Answer: c Explanation: The least possible number ...
View QuestionThe HCF and LCM of 2^4, 8^2, 16^2, 20^3 are :
The HCF and LCM of 24, 82, 162, 203 are : a) 23, 32000 b) 24, 32000 c) 24, ...
View QuestionA number when divided by 14 leaves reminder of 8, but when the same number is divided by 7, it will leave the remainder :
a) 3 b) 2 c) 1 d) 4 Answer: c Explanation: When the number is ...
View QuestionThe unit digit of (316)^3^4n + 1 is :
The unit digit of (316)34n + 1 is : a) 4 b) 5 c) 1 d) 7 Answer: d
View QuestionThe sum of two numbers is 18. The greatest product of these two number can be:
a) 17 b) 80 c) 81 d) Can't determined Answer: c Explanation: a + b = 18 Maximum ...
View QuestionA gardener plants his garden with 5550 trees and arranged them so that there is one plant more per row as there are rows then number of trees in a row is:
a) 56 b) 74 c) 76 d) 75 Answer: d Explanation: Let there be n rows, then ...
View QuestionA two digit number ab is added to another number ba, which is obtained by reversing the digits then we get three digit number. Thus (a + b) equals to:
a) at least 18 b) 2ab c) 2(a + b) d) (a + b) ≥ 10 Answer: d ...
View QuestionThe rightmost non-zero digit of the number 30^(2720) is
The rightmost non-zero digit of the number 302720 is a) 1 b) 3 c) 7 d) 9 Answer: a
View QuestionOn a road three consecutive traffic lights change after 36, 42 and 72 seconds respectively. If the lights are first switched on at 9:00 AM sharp, at what time will they change simultaneously?
a) 9:08:04 b) 9:08:44 c) 9:08:24 d) None of these Answer: c Explanation: LCM of 36, 42 and 72, 36 ...
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